#include "ipsets.h"
#include "includes.h"
#include "ubus.h"
+#include "iptables.h"
-static bool print_rules = false;
+static enum fw3_family print_family = FW3_FAMILY_ANY;
static struct fw3_state *run_state = NULL;
static struct fw3_state *cfg_state = NULL;
static bool
-restore_pipe(enum fw3_family family, bool silent)
-{
- const char *cmd;
-
- cmd = (family == FW3_FAMILY_V4) ? "iptables-restore" : "ip6tables-restore";
-
- if (print_rules)
- return fw3_stdout_pipe();
-
- if (!fw3_command_pipe(silent, cmd, "--lenient", "--noflush"))
- {
- warn("Unable to execute %s", cmd);
- return false;
- }
-
- return true;
-}
-
-static bool
family_running(enum fw3_family family)
{
return (run_state && has(run_state->defaults.flags, family, family));
}
static int
-stop(bool complete, bool reload)
+stop(bool complete)
{
FILE *ct;
int rv = 1;
enum fw3_family family;
enum fw3_table table;
+ struct fw3_ipt_handle *handle;
if (!complete && !run_state)
{
- if (!reload)
- warn("The firewall appears to be stopped. "
- "Use the 'flush' command to forcefully purge all rules.");
+ warn("The firewall appears to be stopped. "
+ "Use the 'flush' command to forcefully purge all rules.");
return rv;
}
- if (!print_rules && run_state)
+ if (!print_family && run_state)
fw3_hotplug_zones(run_state, false);
for (family = FW3_FAMILY_V4; family <= FW3_FAMILY_V6; family++)
if (!complete && !family_running(family))
continue;
- if (!restore_pipe(family, true))
- continue;
-
for (table = FW3_TABLE_FILTER; table <= FW3_TABLE_RAW; table++)
{
if (!fw3_has_table(family == FW3_FAMILY_V6, fw3_flag_names[table]))
continue;
+ if (!(handle = fw3_ipt_open(family, table)))
+ continue;
+
info(" * %sing %s %s table", complete ? "Flush" : "Clear",
fw3_flag_names[family], fw3_flag_names[table]);
- fw3_pr("*%s\n", fw3_flag_names[table]);
-
if (complete)
{
- fw3_flush_all(table);
+ fw3_flush_all(handle);
}
else if (run_state)
{
- /* pass 1 */
- fw3_flush_rules(run_state, family, table, reload, false);
- fw3_flush_zones(run_state, family, table, reload, false);
-
- /* pass 2 */
- fw3_flush_rules(run_state, family, table, reload, true);
- fw3_flush_zones(run_state, family, table, reload, true);
+ fw3_flush_rules(handle, run_state, false);
+ fw3_flush_zones(handle, run_state, false);
}
- fw3_pr("COMMIT\n");
+ fw3_ipt_commit(handle);
}
- fw3_command_close();
family_set(run_state, family, false);
family_set(cfg_state, family, false);
rv = 0;
}
- if (!reload && run_state)
- {
- if (fw3_command_pipe(false, "ipset", "-exist", "-"))
- {
- fw3_destroy_ipsets(run_state);
- fw3_command_close();
- }
- }
+ if (run_state)
+ fw3_destroy_ipsets(run_state);
if (complete && (ct = fopen("/proc/net/nf_conntrack", "w")) != NULL)
{
}
static int
-start(bool reload)
+start(void)
{
int rv = 1;
enum fw3_family family;
enum fw3_table table;
+ struct fw3_ipt_handle *handle;
- if (!print_rules && !reload)
- {
- if (fw3_command_pipe(false, "ipset", "-exist", "-"))
- {
- fw3_create_ipsets(cfg_state);
- fw3_command_close();
- }
- }
+ if (!print_family)
+ fw3_create_ipsets(cfg_state);
for (family = FW3_FAMILY_V4; family <= FW3_FAMILY_V6; family++)
{
if (family == FW3_FAMILY_V6 && cfg_state->defaults.disable_ipv6)
continue;
- if (!print_rules && !reload && family_running(family))
+ if (print_family && family != print_family)
+ continue;
+
+ if (!print_family && family_running(family))
{
warn("The %s firewall appears to be started already. "
"If it is indeed empty, remove the %s file and retry.",
continue;
}
- if (!restore_pipe(family, false))
- continue;
-
for (table = FW3_TABLE_FILTER; table <= FW3_TABLE_RAW; table++)
{
if (!fw3_has_table(family == FW3_FAMILY_V6, fw3_flag_names[table]))
continue;
+ if (!(handle = fw3_ipt_open(family, table)))
+ continue;
+
info(" * Populating %s %s table",
fw3_flag_names[family], fw3_flag_names[table]);
- fw3_pr("*%s\n", fw3_flag_names[table]);
- fw3_print_default_chains(cfg_state, family, table, reload);
- fw3_print_zone_chains(cfg_state, family, table, reload);
- fw3_print_default_head_rules(cfg_state, family, table, reload);
- fw3_print_rules(cfg_state, family, table);
- fw3_print_redirects(cfg_state, family, table);
- fw3_print_forwards(cfg_state, family, table);
- fw3_print_zone_rules(cfg_state, family, table, reload);
- fw3_print_default_tail_rules(cfg_state, family, table, reload);
- fw3_pr("COMMIT\n");
+ fw3_print_default_chains(handle, cfg_state, false);
+ fw3_print_zone_chains(handle, cfg_state, false);
+ fw3_print_default_head_rules(handle, cfg_state, false);
+ fw3_print_rules(handle, cfg_state);
+ fw3_print_redirects(handle, cfg_state);
+ fw3_print_forwards(handle, cfg_state);
+ fw3_print_zone_rules(handle, cfg_state, false);
+ fw3_print_default_tail_rules(handle, cfg_state, false);
+
+ if (!print_family)
+ fw3_ipt_commit(handle);
}
- fw3_print_includes(cfg_state, family, reload);
+ if (!print_family)
+ fw3_print_includes(cfg_state, family, false);
- fw3_command_close();
family_set(run_state, family, true);
family_set(cfg_state, family, true);
{
fw3_set_defaults(cfg_state);
- if (!print_rules)
+ if (!print_family)
{
- fw3_run_includes(cfg_state, reload);
+ fw3_run_includes(cfg_state, false);
fw3_hotplug_zones(cfg_state, true);
fw3_write_statefile(cfg_state);
}
return rv;
}
+
+static int
+reload(void)
+{
+ int rv = 1;
+ enum fw3_family family;
+ enum fw3_table table;
+ struct fw3_ipt_handle *handle;
+
+ if (!run_state)
+ return start();
+
+ fw3_hotplug_zones(run_state, false);
+
+ for (family = FW3_FAMILY_V4; family <= FW3_FAMILY_V6; family++)
+ {
+ if (!family_running(family))
+ goto start;
+
+ for (table = FW3_TABLE_FILTER; table <= FW3_TABLE_RAW; table++)
+ {
+ if (!fw3_has_table(family == FW3_FAMILY_V6, fw3_flag_names[table]))
+ continue;
+
+ if (!(handle = fw3_ipt_open(family, table)))
+ continue;
+
+ info(" * Clearing %s %s table",
+ fw3_flag_names[family], fw3_flag_names[table]);
+
+ fw3_flush_rules(handle, run_state, true);
+ fw3_flush_zones(handle, run_state, true);
+ fw3_ipt_commit(handle);
+ }
+
+ family_set(run_state, family, false);
+ family_set(cfg_state, family, false);
+
+start:
+ if (family == FW3_FAMILY_V6 && cfg_state->defaults.disable_ipv6)
+ continue;
+
+ for (table = FW3_TABLE_FILTER; table <= FW3_TABLE_RAW; table++)
+ {
+ if (!fw3_has_table(family == FW3_FAMILY_V6, fw3_flag_names[table]))
+ continue;
+
+ if (!(handle = fw3_ipt_open(family, table)))
+ continue;
+
+ info(" * Populating %s %s table",
+ fw3_flag_names[family], fw3_flag_names[table]);
+
+ fw3_print_default_chains(handle, cfg_state, true);
+ fw3_print_zone_chains(handle, cfg_state, true);
+ fw3_print_default_head_rules(handle, cfg_state, true);
+ fw3_print_rules(handle, cfg_state);
+ fw3_print_redirects(handle, cfg_state);
+ fw3_print_forwards(handle, cfg_state);
+ fw3_print_zone_rules(handle, cfg_state, true);
+ fw3_print_default_tail_rules(handle, cfg_state, true);
+
+ fw3_ipt_commit(handle);
+ }
+
+ fw3_print_includes(cfg_state, family, true);
+
+ family_set(run_state, family, true);
+ family_set(cfg_state, family, true);
+
+ rv = 0;
+ }
+
+ if (!rv)
+ {
+ fw3_set_defaults(cfg_state);
+ fw3_run_includes(cfg_state, true);
+ fw3_hotplug_zones(cfg_state, true);
+ fw3_write_statefile(cfg_state);
+ }
+
+ return rv;
+}
+
static int
lookup_network(const char *net)
{
int main(int argc, char **argv)
{
int ch, rv = 1;
+ enum fw3_family family = FW3_FAMILY_ANY;
struct fw3_defaults *defs = NULL;
- enum fw3_family use_family = FW3_FAMILY_ANY;
while ((ch = getopt(argc, argv, "46dqh")) != -1)
{
switch (ch)
{
case '4':
- use_family = FW3_FAMILY_V4;
+ family = FW3_FAMILY_V4;
break;
case '6':
- use_family = FW3_FAMILY_V6;
+ family = FW3_FAMILY_V6;
break;
case 'd':
if (!strcmp(argv[optind], "print"))
{
- if (use_family == FW3_FAMILY_ANY)
- use_family = FW3_FAMILY_V4;
- else if (use_family == FW3_FAMILY_V6 && defs->disable_ipv6)
- warn("IPv6 rules globally disabled in configuration");
+ if (family == FW3_FAMILY_ANY)
+ {
+ family = FW3_FAMILY_V4;
+ }
+ else if (family == FW3_FAMILY_V6)
+ {
+ if (defs->disable_ipv6)
+ warn("IPv6 rules globally disabled in configuration");
+#ifdef DISABLE_IPV6
+ else
+ warn("IPv6 support is not compiled in");
+#endif
+ }
freopen("/dev/null", "w", stderr);
cfg_state->disable_ipsets = true;
- print_rules = true;
+ print_family = family;
+ fw3_pr_debug = true;
- rv = start(false);
+ rv = start();
}
else if (!strcmp(argv[optind], "start"))
{
if (fw3_lock())
{
- rv = start(false);
+ rv = start();
fw3_unlock();
}
}
{
if (fw3_lock())
{
- rv = stop(false, false);
+ rv = stop(false);
fw3_unlock();
}
}
{
if (fw3_lock())
{
- rv = stop(true, false);
+ rv = stop(true);
fw3_unlock();
}
}
{
if (fw3_lock())
{
- stop(true, false);
- rv = start(false);
-
+ stop(true);
+ rv = start();
fw3_unlock();
}
}
{
if (fw3_lock())
{
- rv = stop(false, true);
- rv = start(!rv);
-
+ rv = reload();
fw3_unlock();
}
}
projects / project / firewall3.git / blobdiff